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Butoxors [25]
3 years ago
5

The area of a trapezoid is 864 cm. It has a height of 24 cm, and the length

Mathematics
1 answer:
Bogdan [553]3 years ago
6 0

Answer:=42 cm

Step-by-step explanation:

Strap=(a+b)*h/2    ( where a and b are trapezoid' s  bases and h is a height)

So   864=(30+b)*24/2

30+b=864*2/24

30+b=864/12

30+b=72

b=72-30

b=42 cm

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Step-by-step explanation:

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What is 60,978 in expanded form
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2 years ago
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Can you solve this? I need help. I don't understand.
ZanzabumX [31]

Answer:

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Step-by-step explanation:

You have to know Pythagorean theorem to solve this question.

a^2 + b^2 = c^2

To use this theorem you have to have a right triangle. There are two right triangles in your image. The lower (larger) one has two sides labeled, so you can use Pythagorean thm to find the third side. There's a short cut, bc some right triangles have easy-to-memorize lengths of the sides. 3-4-5 is one of these number sets. A multiple of this is 6-8-10. We could've solved:

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