Help ASAP (find the area)
1 answer:
Area of pyramid is
Here in the diagram is pyramid which is made by triangle and rectangle.
What is the pyramid?
A pyramid is a polyhedron for which the base is a polygon and all lateral faces are triangles.
From figure we have:
AB = 8 cm, AC = 6 cm, BC = 10 cm
And height h = 5 cm
Now area of triangle = 1/2×AB×AC
= 1/2×8×6
=24 cm^2
And perimeter of triangle = 8 + 6 + 10
= 24 cm
Now area of pyramid = 24×5 + 2×24
= 168 cm^2
Hence Area of given figure is .
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Answer:
The following Triangles are Right Triangles:
1. Δ ABC Where AB = 76 in, BC = 357 in, and AC = 365 in.
2. Δ MIT Where MI = 123 cm, IT = 836 cm, and MT = 845 cm.
3. Δ MEL Where ME = 20 ft, EL = 99 ft, and ML = 101 ft.
Step-by-step explanation:
For a Triangle to be a Right Triangle it must Satisfy Pythagoras theorem.
i.e.
For Δ ABC Where AB = 76 in, BC = 357 in, and AC = 365 in.
AC² = 365² = 133225
AB² + BC² = 76² + 357² = 1333225
∴ AC² = AB² + BC²
Hence Δ ABC a Right Triangle.
For Δ MIT Where MI = 123 cm, IT = 836 cm, and MT = 845 cm.
MT² = 845² = 71405
MI² + IT² = 123² + 836² = 714025
∴ MT² = MI² + IT²
Hence Δ MIT a Right Triangle.
For Δ MEL Where ME = 20 ft, EL = 99 ft, and ML = 101 ft.
ML² = 101² = 10201
ME² + EL² = 20² + 99² = 10201
∴ ML² = ME² + EL²
Hence Δ MEL a Right Triangle.