Math, asked by dhiru278, 7 months ago

8. In a AABC, if ZA - ZB = 42°
and 2B - C = 21°, then 2B = ?

Answers

Answered by is06s

0

Answer:

2 × angle B = 117°

Step-by-step explanation:

A + B + C= 180° (i)...

from the question we obtain ...

21 + 2B=C

42+B=A

putting the new values of A and C in (i)...

21+2B+42-B+B=180

63+2B=180

2B=117°

Previous Question

Next Question

Similar questions

Math, 3 months ago

Expand using identity ( − 2)2...

Social Sciences, 3 months ago

please answer the questions...

Math, 3 months ago

20:25=m:5 , find the value of m.

English, 7 months ago

what is demographic...

English, 7 months ago

1. (a) Read the passage given below and answer the questions Human sympathy always aspires: it is sometimes extended would doubt, whether the lowly and the depressed-posten equals, hardly ever to inferiors. And so it happens that ma and to resent social tyranny. When human attitude is so be the find sense of the exalted to feel the same joy and some discriminative as regards different grades of...

Math, 11 months ago

imagine that you are driving a bus at first stop 2 people sits at second 7 people and 2 people exits at last 2 people sits and no one exits what is the age of driver...

English, 11 months ago

" My vest, the dirty one. the fellow had such a sense of cleanliness. . . . . . . ! " Explain. what does this statement tell you about the doctor? story of the snake and the mirror...

Biology, 11 months ago

in which part of the stomata chloroplast is present...