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Do as direct The measure of the three angles of a. quadrilateral is 39.,70and 100 find out the measure of frouth angle |
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Answer» adrilateral measure of three angles are EQUAL and each ANGLE is 95 o .⇒ LET measure of its fourth angle be x.We know that SUM of all angles in quadrilateral is 360 o ∴ 95 o +95 o +95 o +x=360 o ⇒ 285 o +x=360 o ⇒ x=360 o −285 o ⇒ x=75 o ⇒ The measure of fourth angle is 75 o . |
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