Term 2 Review

Triangles

100

What is the name for a triangle with all sides the same length?

Equilateral

200

What is the name of a triangle with 1 90 degree angle

Right angle triangle 

300

What's the term for a triangle with an angle greater than 90 degrees?

Obtuse triangle

400

What's the term for a triangle with no sides the same length?

Scalene triangle

500

What's the term for a triangle with 2 sides the same length?

Isosceles

Area

100

What's the area of a rectangle with a base of 5cm and a height of 32cm?

160 cm squared

200

What's the area of a parallelogram with a base of 7m, a height of 11m, and a slant height of 3m?

77m squared

300

What's the area of a triangle with a base of 6cm, a side length of 7cm, and a height of 8cm?

24cm squared

400

What's the area of the trapezoid with a base of 7cm, another base that is 10cm, and a height of 4cm?

34 cm squared

500

How do we get the area formula for a triangle from the area formula for a rectangle?

The area for a rectangle is b x h, and since we can draw a diagonal in the rectangle that splits it into two equal triangles, we can just divide the formula by 2 so we get b x h / 2

Volume

100

What's the volume of a cereal box with a base length of 10cm, a height of 13cm, and a width of 3cm?

390cm cubed

200

What's the formula for volume of a cylinder?

V = pi x r² x h

300

If the diameter of a cylinder is 18m and the height is 6m, what is the volume? 

V = 1526.81cm cubed

400

What's the formula for the volume of a triangular prism?

V = 1/2 bxh x H

500

The volume of a cylinder is 904.78cm³.  If the height of the cylinder is 18 cm, what is the radius?

4cm

Trigonometry

100

What is the trig ratio for cos?

adj/hyp (a/h)

200

If you know the length of the hypotenuse and you want to find the length of the opposite side, what trig function would you use?

Sin, sin = opp/hyp

300

What's the length of the opposite side if your angle measure is 30 and your adjacent side is 9cm? (round to 1 decimal place)

x = 5.2cm

400

If you know the adjacent side length is 12 and the hypotenuse is 18, what is the measure of the angle? (round to 2 decimal places)

x = 48.19

500

Why can't you have sin x = 18/9?

Sin x = opposite/hypotenuse. However, the hypotenuse always has to be the longest side. Therefore, this is not possible.