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kicyunya [14]
3 years ago
7

PLEASE HELPP!!!

Mathematics
1 answer:
gogolik [260]3 years ago
4 0

Answer:

Area of triangle B is 112 cm²

Option A is correct option.

Step-by-step explanation:

The dimensions of triangle B are twice the dimensions of triangle A.

Area of triangle A = 28 cm²

We need to find area of triangle B

We know that if base = b and height = h for triangle A

The area of triangle A will be: Area_A=\frac{1}{2}\times b \times h

The dimensions for triangle B will be:

h_B = 2 h_A\\b_B = 2 b_A

Putting in formula we get:

Area_B=\frac{1}{2}\times b\times h \\Area_B=\frac{1}{2}\times (2b)\times 2(h)\\Area_B=4( \frac{1}{2}\times b\times h)\\Area_B=4(Area_A)

SO, we get Area_B=4(Area_A)\\

We have Area_A = 28 cm²

Area of triangle B Area _B is:

Area_B=4(28)\\Area_B=112\:cm^2

So, Area of triangle B is 112 cm²

Option A is correct option.

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