Question

three angles of a quadrilateral are equal .If the the fourth angle is 69° ,fond measure of the equal angles

Answer 1

Answer,

Let x be the common angle of quadrilateral.

As per question,

<A =<B = <C = x

<D = 69°

As we know that, Sum of all four angles of quadrilateral is 360o.

<A + <B + <C + <D = 360°

x + x + x + 120° = 360°

3x = 360° - 69°

3x = 291

X = 291/3 = 97

<A = <B =<C = 97°

So,
Three Angles of quadrilateral whose measuring’s are equal is 97°.

Answer 2

Answer:

Let, x be the three equal angles.

We know,

Sum of all the angles of a quadrilateral is 360 degree.

so,

X + X + X + 69 = 360

3x + 69 = 360

3x = 360 - 69

3x = 291

X = 291/3

X = 97

Thus, the measure of each of the equal angles is 97 degree.

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