Question

GRADE 7 - MATHEMATICS
IVORASHEET
07.1.21
Workout the following problems
1. Find the values of the unknowns 'x' and 'y'
in the following diagrams
a)
b)
R
150
v
120
(50
R
1
c)
d)
M M
509
600
N
A
90°
f)​

Answer 1

Step-by-step explanation:

a part::

y=60 deg. as qr is a straight line so y and 120 deg should sum up to 180 deg.

and x can be found by angle sum property of a triangle that is that the sum of all the angles of a triangle should sum up again to 180 deg

b part ::

x will be 80 deg

by as it is the vertical opposite angle

And y can be easily found by angle sum property that I told in. a part

c part::

y can be found by angle sum property discussed in a and b part

and x +y =180 eqn 1...

first find y and put it in eqn 1

u will get x

d part can be done with the properties discussed earlier

e part can also be done by the properties already discussed

f part

can be trouble for u as its little bit tricky for. a 7 grade student but still its not very hard

assume intern angles of traingle as A,B and C

now u see that A=B=C =x

just apply angle sum property

3X =180

x=60

hope it helps

pls mark as brainliest

best of luck