Question

Draw an isosceles triangle having a base of 4cm and a perimeter of 14cm

Answer 1

Step-by-step explanation:

The length of the two equal sides is 5 cm. We know that the formula to calculate the perimeter of an isosceles triangle is P = 2a + b units. Therefore, the perimeter of an isosceles triangle is 16 cm.

Answer 2

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Draw an isosceles triangle having a base of 4cm and a perimeter of 14cm

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The base is the unequal side. The height will be perpendicular to the base at its midpoint, and the equal sides will be hypotenuses of the right triangles formed by the base and the height.

Each one of those right triangles will have a 3 cm leg and a 4 cm leg. Using Pythagoras’ theorem, each hypotenuse will be 5 cm.

Therefore, the perimeter is 16 cm.

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