Angles
Shape Names
Area
Perimeter
King Henry
100
This is an angle that is more than 0° and less than 90°. What is the name of this angle?
acute (spetsig) angle
100
What do you call a 4 sided shape with all equal sides and all 90° corners?
a square (kvadrat)
100
A square has a side length of 5 cm. What is the area?
A = b x h = 5 x 5 = 25 square cm
100
Calculate the perimeter (omkrets) of a rectangle with side lengths of 4 cm and 5 cm
P = 4 + 5 + 4 + 5 = 18 cm
100
Change 6 m to cm.
Answer: 600 cm 6 x 100 = 600 cm Or: 6, and move the comma two steps to the right: 600, cm
200
This is an angle that is greater than 90° but less than 180°. What is the name of this angle?
obtuse (trubbig) angle
200
Which shape has the most number of sides? a) quadrilateral b) hexagon c) parallelogram d) pentagon
b) hexagon - it has six sides
200
A rectangle has measurements of 15 m and 4 m. What is the area?
A = b x h = 15 x 4 = 60 square meters
200
Calculate the perimeter of a square with a side length of 17 cm
P = 17 + 17 + 17 + 17 = 68 cm
200
Change 4 dL to mL
Answer: 400 mL 4 x 100 = 400 mL Or 4, and move the comma two steps to the right 400, mL
300
This angle is the biggest angle. It is always outside. It measures more than 180° and less than 360°. What is the name of this angle?
reflex angle
300
If Ms. Ives asked you to draw a triangle with a perimeter of 9 cm, how long would each side be?
3 cm
300
A triangle has a base of 2 km and a height of 6 km. What is the area of the triangle?
A = (b x h) / 2 = (2 x 6) / 2 = 6 square km
300
A triangle has a perimeter of 18 cm. If one side is 6 cm and the other side is 5 cm, how long is the other side?
7 cm
300
Convert 50 m to km
Answer: 0,05 km Start with 50, and move the comma 3 steps to the left 0,05 km
400
What is the name of the most common angle? We see it in on pieces of paper, in our classroom, and helps keep our houses strong in the corners or doorways. How many degrees does this angle have?
right (rät) angle, 90°
400
Mr. Ely is drawing a quadrilateral on a piece of paper. He only wants the perimeter to be 50 cm. If he draws one side that is 12 cm long, how long can the other sides be?
There are many answers here! A quadrilateral has four sides, so all of the total of the other three sides must equal 38 cm (50 cm - 12 cm = 38 cm) Example: 10 cm, 12 cm, 16 cm 30 cm, 6 cm, 2 cm 36 cm, 1 cm, 1 cm
400
A square has a perimeter of 52 cm. What is the area of the square?
P = 52 cm so side = P / 4 = 52 / 4 = 13 cm A = side x side = 13 x 13 = 169 square cm
400
Reflex the dog needs a new square yard to play in. If he needs an area of 100 square meters to run around in, how much fencing is needed to fence in the yard?
100 square meters means a side length of 10 m *Think - ____ x ____ = 100, that number is 10! P = 10 + 10 + 10 + 10 = 40 meters of fencing is needed.
400
Convert 0,003 kg to mg
Answer: 3000 mg Move the comma 6 steps to the right 0,003 kg = 3000 mg
500
If a triangle has one angle of 100°, and another angle of 44°, what is the measure of the missing angle?
36°
500
Mr. Friesen's favourite shape can be made by fitting two identical right triangles together. What shape can NOT be Mr. Friesen's favourite? a) a rhombus b) a square c) a trapezoid d) a rectangle
c) a trapezoid
500
A triangle has an area of 12,5 square m. If the height of the triangle is 10 m, what is the length of the base?
A = (b x h) / 2 so to find the height of the triangle, we need to work backwards. 12,5 = (b x h) / 2 25 = (b x h) 25 = (10 x h) *think, 10 times something equals 25. 25/10 = h 2,5 m = h
500
Three houses that are side by side are putting up a fence to separate their backyards. If the length of one of the yards is 20 m and the width is 15 m, how much fencing is needed?
There are 4 lengths that need fencing, so the total for the length is: P = 4 x 20 = 80 m There are 3 widths that need fencing, so the total for the widths is: P = 3 x 15 = 45 m The total fencing needed is 80 + 45 = 125 m of fencing
500
Which number is larger? 0,1 km or 10000 mm
Answer: 0,1km Convert both to meters to compare: 0,1 km x 1000 = 100 m 10 000 mm move the comma 3 steps to the left 10, m 100 m > 10 m, so 0,1 km is larger
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