Question

Please answer these questions fast
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Answer 1

x=100

y=100

z=80

Step-by-step explanation:

help full for U

Answer 2

x =100°

z = 80°

y=100°

ok

c) l don't know the the c no

so l am giving you a example

this must help you

1) radhika scored 36 marks. final score of radhika is 20. she got 16 marks negative. therefore she made 8 incorrect answer.

2) mohini scored 21 marks. final score of radhika is -5. she got 26 marks negative. therefore she made 13 incorrect answer.

B) Given:AB-AC

BD=CD

To prove that: ADB congruent to ADC

We have,

AB=AC(given)

BD=CD(given)

AD(common side)

Therefore, ADB ~ ADC (by SSS) N

Also angle ADB -angle ADC (by c.p.c.t.)

But angleADB + angleADC = 180° (linear pair)

Implies that 2-angleADC = 180°

Implies that angleADC= 180°/2 = 90° = angle ADB

Hence, angleADC = angle ADB (Proved)

hope it helps you

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