Question

angle
(d) reflex angle
Fill in the blanks in question number 11 to 15-
11 (-6,5) lies in
quadrant
12.Area of equilateral triangle having each side 6cm is
13.The product of two irrational numbers is
14. Coefficient of x’ in 3x-5 is
15.The angles of triangle are in the ratio 3:2:7 . The measure of each of its angles are
Answer the following question numbers 16 to 20-
16.An angle is one - fifth of its supplement find measure of the angle.
17. In AABC, if AB=AC and 2A=70°, find 2B and 2C.
18.On which axis do (7,0) point lie ?
19. Each side of an equilateral triangle is 8cm find its altitude.
20. Find a rational number lying between and​

Answer 1

Answer:

11. It lies in 3rd quadrant..

12. Area = 15.588 cm ^2

13. The product of two irrational numbers can be rational or irrational

14. Coefficient = 3

15.The measure of each of its angles are = 45° , 30 ° and 105 °

16. above attachment...

17. In triangle ABC , 2A = 70

so , A = 45 °

AB = AC

So , Angle C = Angle B

45 + C + B = 180

45 + C + C = 180

2C = 135°

So 2B = 135 °

18. (7,0) point lie on x axis..

19. In the above attachemant ...

20. question not complete...???

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