Resurrection
A right angle has __________ degrees
90°
An angle with less than 90° is an __________ angle
acute
An angle with more than 90° but less than 180° is an _________ angle
obtuse
A straight angle has ___________ degrees
180°
A triangle with three congruent sides is an ________ triangle
equilateral
A circle has __________ degrees
360°
A triangle has _________ degrees
180°
The instrument used to measure or draw angles is the ______________
protractor
The instrument used to measure or draw angles is the __________
compass
The line segment that passes through the center of the circle and has both endpoints on the circle is the _____
diameter
One half the diameter is the _______
radius
Find the area
square with sides of 9 ft.
81 sq ft
Find the area
triangle with base 8 ft. and height 6 ft.
24 sq. ft
Write the formula
area of a circle
A = πr2
Write the formula
perimeter of a parallelogram
P = 2l + 2w
Write the formula
area of a triangle
A = 1/2 bh
Write the formula
circumference of a circle using radius
C = 2πr
Find the area
circle with a radius of 2 ft.
12.56 sq. ft
Find the perimeters
rectangle 8 m by 10 m
36 m
Find the circumference
diameter 8 ft.
25.12 ft
Find the perimeters
square with sides of 1 1/2
6 ft
Find the circumference
radius 5 ft.
31.4 ft
Find the area
rectangle which is 2.3 m by 6.8 m
15.64 m2
120 is what % of 150
80%
4.61
5.9
7.285
+14.9
32.695
105 is 42% of what number?
250
3 2/5
4 1/2
+1 1/6
9 1/15
6 3/4
- 2 1/6
4 7/12
4/7 x 3/4
3/7
3 + 2 ・ 6
15
One of the equal angles in an isosceles triangle is 40࿁ . How many degrees are in the other two angles
40࿁; 100࿁
(2/3)2
4/9
Last summer Emma earned $280. She saved $98. What percent of the money did she save?
35%
20 ÷ 55/8
3 5/9
51/2% of $860
$47.30