Page 366 - Start Up Mathematics_8 (Non CCE)

Section C

3. Fill in the blanks: 1 M × 5 = 5 M
(a) The loss and gain percent are always calculated on the _____________.
(b) If the interest is compounded quarterly, then to find the amount, we _____________ the given time.
(c) Diagonals of a rhombus are _____________ of each other.
(d) In a _____________, all sides are equal and all angles are 90°.
(e) Each face of an icosahedron is _____________.

Section D

4. Give one word or sentence for the following: 1 M × 5 = 5 M
(a) What are overhead expenses?
(b) What is conversion period?
(c) State one property of diagonals of a rectangle.
(d) Can we construct a rhombus if the measure of only one of its side is given?
(e) Write Euler’s formula.

Section E
5. The four angles of a quadrilateral are in the ratio 1 : 2 : 4 : 5. Find the angles. 2 M
6. Two DVD players are sold at ` 4,500 each. On one there is a profit of 10% and on other there is a loss
of 10%. What is the profit% or loss% in the whole transaction. 3 M

Project Work
6
Visualizing Solid Shapes
2 5 3 1
1. The net of a die shown alongside has numbers 1, 2, 3, 4, 5 and 6
written on it. Which of these is not the correct figure of this die? 4

1 3 5 3
3 6 5 4 2 4 5 1
(i) (ii) (iii) (iv)

B

A C E F

2. Which of the following pictures is the correct figure of the net of D
a die shown alongside?

C C F F
A E D A E A B D
(i) (ii) (iii) (iv)

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