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Norma-Jean [14]
3 years ago
15

4.

Mathematics
1 answer:
slava [35]3 years ago
3 0

Answer:

A. 8.9 in.

Step-by-step explanation:

a) 8.9

Triangle is half of a square, so a square has double the area of the triangle.

40 x 2 = 80

Area is the square root of 80.

Square root of 80 = about 8.9

x = 8.9

Answer: a) 8.9 in.

Step-by-step explanation:

From the given picture it can be seen that the area of the triangle A = 40 sq. in.

The height of triangle = base of the triangle =x

We know that the area of triangle is given by :-

Hence, the value of x = 8.9 in.

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A=lw
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