Everything Maths Grade 10

17.F GHIis a rhombus.F^ 1 = 3x+ 20◦;G^ 1 =x+ 10◦. Determine the value ofx.

H

G

I

F

1

2

1

2

1

2

1

2

2

(^14)
3
E
18.In the diagram below,AB=BC=CD=DE=EF=F A=BE.
F
A B
E
C
D
Name:
a)3 rectangles
b)4 parallelograms
c)2 trapeziums
d)2 rhombi
19.PointsRandPare the mid-points on linesQSandQT. Study△T SQcarefully. Identify the third side of
this triangle, using the information as shown, together with what you know about the mid-point theorem.
(Name the third side by its endpoints, e.g.,F G.)
T
Q
S
P
R
20.PointsXandVare given on the segmentsW YandW Z. Study the triangle carefully, then identify and
name the parallel line segments.
Z
W
Y
X V
Chapter 7. Euclidean geometry 277