Question

Work out the area of the parallelogram 13cm 21cm 79 degrees.

Answer 1

The area of the given parallelogram is approximately

$268cm^2$

Data given;

• a = 13cm
• b = 21cm
• angle = 79 degrees

Area of a Parallelogram

The area of a parallelogram is the product of its two sides and the sine of the angle (if given).

So the formula of our parallelogram is

$A = a.bsinx$

x = angle

Substitute the values and solve.

$A = 13 * 21 * sin79\\A = 267.98cm^2\\A = 268cm^2$

From the calculation above, the area of the parallelogram is approximately $268cm^2$

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