4The diagram below, not drawn to scale, shows two triangles, JLK and MLP, with JK parallel to ML. LM = MP,KLP is a straight line e JLM = 22° and angle LMP-36°144360Calculate, giving reasons for your answers, the measure of each of the following:i. ZMLPii. ZLJKiii. LJKLiv. ZKLJ
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Answer:
Answer:∠MLP = 72° , ∠LJK = 22° , ∠JKL = 72° , ∠KLJ = 86°Step-by-step explanation:Here, given In ΔJLK and ΔMLPHere, JK II ML, LM = MP ∠JLM = 22° and ∠LMP = 36°Now, As angles opposite to equal sides are equal.⇒ ∠MLP = ∠MPL = x°Now, in ΔMLPBy ANGLE SUM PROPERTY: ∠MLP + ∠MPL + ∠LMP = 180°⇒ x° + x° + 36° = 180°⇒ 2 x = 180 - 36 = 144or, x = 72°⇒ ∠MLP = ∠MPL = 72°Now,as JK II ML ⇒ ∠LJK = ∠JLM = 22° ( Alternate pair of angles) Now, by the measure of straight angle:∠MLP + ∠JLM + ∠JLK = 180° ( Straight angle)⇒ 72° + 22° + ∠JLK = 180° or, ∠JLK = 86°In , in ΔJLKBy ANGLE SUM PROPERTY: ∠JKL + ∠JLK + ∠LJK = 180°⇒ ∠JKL + 86° + 22° = 180°⇒ ∠JKL = 180 - 108 = 72 , or ∠JKL = 72°Hence, from above proof , ∠MLP = 72° , ∠LJK = 22° , ∠JKL = 72° ,∠KLJ = 86°
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10 months ago
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