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12 Two towers AB and PQ stand on level ground. The angles of elevation of the top of the taller tower from the top and bottom of the shorter tower are 5° and 20° respectively. The height of the taller tower is 70 metres. a Explain why ZAPJ = 15°. b Show that AB= BP sin 15° sin 95° 70 c Show that BP = sin 20° B d Hence find the height of the shorter tower, correct to the nearest metre. 20°

12 Two towers AB and PQ stand on level ground. The angles of elevation of the top of the taller tower from the top and bottom of the shorter tower are 5° and 20° respectively. The height of the taller tower is 70 metres. a Explain why ZAPJ = 15°. b Show that AB= BP sin 15° sin 95° 70 c Show that BP = sin 20° B d Hence find the height of the shorter tower, correct to the nearest metre. 20°

Calculus: Early Transcendentals
Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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12 Two towers AB and PO stand on level ground. The angles of clevation of me top of the faller tower from the top and bottom of the shorter tower are S- and 20° respectively. The height of the taller tower is 70 metres. a Explain why ZAPI = 15°. BP sin 15° b Show that AB = sin 95° c Show that BP = 70 20 sin 20° d Hence find the height of the shorter tower, correct to the nearest metre.
Transcribed Image Text:12 Two towers AB and PO stand on level ground. The angles of clevation of me top of the faller tower from the top and bottom of the shorter tower are S- and 20° respectively. The height of the taller tower is 70 metres. a Explain why ZAPI = 15°. BP sin 15° b Show that AB = sin 95° c Show that BP = 70 20 sin 20° d Hence find the height of the shorter tower, correct to the nearest metre.
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