MathematicsA regular polygon has each of its exterior angles as 18o. How many sides has… A regular polygon has each of its exterior angles as 18^{o}. How many sides has the polygon A. 10 B. 11 C. 12 D. 20 E. 24Correct Answer: Option DExplanation^{360}/_{18} = 20FacebookTwitterRedditPinterestEmailLinkedInWhatsApp
In the diagram, In the diagram, ooooo and RS//TU calculate y A. 102o B. 78o C. 70o D. 60o Correct Answer: Option A Explanation 50 + 60 + (2x + 3x) = 180o(Angles in a triangle) 110 + 5x = 180o 5x = 180o – 110 = 70o x = (frac{70}{5}) = 14o Also y + 50 + 2(14) = 180o y + 50 + 28 = 180o y = 180 – 78 y = 102o `, props: [‘comment’], data() { return {} }, methods: {} }) {{ reply.posted_by.display_name }}: {{ reply.created_at }}