8. If the length of a rectangle is (5x+6) units & the breadth is(4x+6) units then for what value of the perimeter of shape 186 cm?

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For the value of x = 9, the perimeter of the shape will be 186 cm.

Step-by-step explanation:

Given

We know that Perimeter of rectangle = 2(L + w)  units

Given that the perimeter of shape 186 cm.

Thus, the equation becomes

2(L + w) = 186

2(5x+6 + 4x+6) = 186

2(9x+12) = 186

Divide both sides by 2

9x+12 = 93

9x = 93-12

9x = 81

Divide both sides by 9

x = 9

Thus, the value of x = 9

Hence, for the value of x = 9, the perimeter of the shape will be 186 cm.

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step-by-step explanation:

the answer is:

the lateral area is equal to

to find the lateral area of the square pyramid, first we need to find the perimeter of the base, and then, find the lateral area using the following formulas:

where,

s, is the base length

slant height, is the height of a the side of the pyramid

we are given:

now, calculating the perimeter of the base, we have:

then, calculating the lateral area:

hence, we have that the lateral area is equal to

have a nice day!