In the diagram, In the diagram, o, o and o. Calculate the obtuse angle QRS. A. 90o B. 100o C. 121o D. 60o Correct Answer: Option C Explanation Joining SQ. In (bigtriangleup) SPQ, (22o + a) + 55o + (41o + b) = 180o 121o + a + b = 180o a + b = 180 – 121 a + b = 59o…..(1) In (bigtriangleup) SRPQ; R + a + b = 180o R + 59o = 180o (in (1), a + b = 59o) R = 180 – 59 R = 121o `, props: [‘comment’], data() { return {} }, methods: {} }) {{ reply.posted_by.display_name }}:   {{ reply.created_at }}

In the diagram, o, o and o. Calculate the obtuse angle QRS.
  • A.
    90o
  • B.
    100o
  • C.
    121o
  • D.
    60o
Correct Answer: Option C
Explanation

Joining SQ. In (bigtriangleup) SPQ,
(22o + a) + 55o + (41o + b) = 180o
121o + a + b = 180o
a + b = 180 – 121
a + b = 59o…..(1)
In (bigtriangleup) SRPQ; R + a + b = 180o
R + 59o = 180o
(in (1), a + b = 59o)
R = 180 – 59
R = 121o

You May Also Like