Qstnid -C-9- Three Angles Of A Quadrilateral Are Equal. If The Fourth Angle Is 69°; Find The Measure Of Equal Angles. - 16: Understanding Shapes (Including Polygons) Class 8 Maths - Icse-viii-mathematics

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ICSE-VIII-Mathematics

16: Understanding Shapes (Including Polygons) Class 8 Maths

with Solutions - page 7

Qstn# C-9 Prvs-Qstn Next-Qstn

#9
Three angles of a quadrilateral are equal. If the fourth angle is 69°; find the measure of equal angles.
Ans : Let each equal angle be x°
x + x + x + 69° = 360°

3x = 360° - 69
⇒ 3x = 291
⇒ x = 97°
Each, equal angle = 97°