Question

Activity Cara
Mall
Mathematics
Class:9
Ratio of areas of these triangles
Activity 5
Ratio in which CD divides AB -
-
1
61
Activity 6
Look at the figure
The heights of the triangle ADC
and triangle BDC are
6 centimeters each.
See the problem
D
MO
.-5-
<--
1
42.com
M
28 sqm
Area of the triangle ADC- 5x5x6=15 sq. cm
Area of the triangle BDC = *5x6 =15 sq. cm
B
Ratio of areas of these triangles
15:15 = 1:1
Ratio in which CD divides AB is 5:5=1:1
That is, a line CD drawn from the vertex C to its opposite side divides the side and the
area of the triangle in the same ratio.
Look at the picture below.
The ratio of areas of triangles lies above the diagonal AC of the quadrilateral on the
figure
= 42 14
3:1
If MC= 7 cm, then
AM
21
cm
What is the area of triangle AMB? 94 cma
If DM = 5 cm, then
B
M D
4
BM
cm
A
18 sq. cm
Area of the triangle ADC =
Area of the triangle BDC =
12 sq cm
General Education Department
217
Samagra Shiksha Kerala
SCERT
Samagra Shiksha Kerala SCERT​

Answer 1

Answer:

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9. Name the set of whole numbers and their opposites \small\underline\pink{integers.}

integers.

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numerator.

Down

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rationalnumbers.

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