Triangle Relationships
A triangle has angles 45° and 65°. Find the third angle.
70°
Triangle: b=10, h=6
30
Find the volume of a rectangular prism with length 4, width 5, and height 3
60 cubic units
A triangle has angle measures of 90° and 40° What is the third angle?
50°
Angles: 30°, 80°, 70° Order sides shortest to longest.
30°, 70°, 80°
Parallelogram: b=9, h=7
63
In the formulas A = bh and V = Bh, what does the capital B represent that is different from lowercase b?
B = area of the base, b = base length
A triangle and a parallelogram both have base 10 units and height 4 units. Which has the greater area and why?
Parallelogram (40 vs 20)
50°, 60°, 80° Can this form a triangle
No (190°)
A triangle has base 12 and height 4. Create a parallelogram with the SAME area. What could its base and height be?
example: b=6, h=4
A rectangular prism has a base area of 20 square units and a height of 9 units. Find the volume.
180 cubic units
Find the volume of a rectangular prism with dimensions 6, 2, and 8.
96
Give 3 side lengths that DO and DO NOT form a triangle.
Ex: 5,6,8 DO and 3,4,10 DO NOT
DAILY DOUBLE!!!
Find the area of a trapezoid with bases 6 units and 10 units and height 5 units
40 square units
A rectangular prism has a volume of 210 cubic units and a base area of 30 square units. Write and solve an equation to find the height.
210 = 30h → h =
Determine if the side lengths 7, 8, and 20 can form a triangle. Explain your reasoning.
No, because 7 + 8 < 20
DAILY DOUBLE!!
Angles: 2x, 3x, 5x Find all angles. Answer: x=18 →
36°, 54°, 90°
A parallelogram has an area of 48 square units and a base of 6 units. Write and solve an equation to find the height.
48 = 6h → h = 8
A rectangular prism has a square base with side length 5 units. The volume is 200 cubic units. Find the height.
Base area = 25 → 200 = 25h → h = 8
A prism has a base area of 36 square units and a volume of 288 cubic units. Write and solve an equation to find the height.
288 = 36h → h = 8