Use the Pythagorean Theorem to find the length of the leg b.
a=15 b= ? c= 9

7200

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the answer is 844

step-by-step explanation:

it is 844 because if you add 836.50 + 7.5 you will get 844

d) 30 units^2

area of rectangle = l × b

we know,

length = 10 unit

breadth = 3 unit

applying the formula,

= l × b

= 10 × 3

= 30 unit^2

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