X ∪ Y means divide X by Y
X ↑ Y means multiple X by Y
X # Y means subtract Y from X
X ∩ Y means add Y to X
Ex 9. One-fifth of one-tenth of two-third of a number X is given by
(A) X ↑ (1∪ 5) ↑ (1∪10) ↑ (2 ∪ 3) (B) (X 1 ↑ 5)(1 ↑ 10)(2 ↑ 3)
(C) (X 1 ↑ 5)(2 ↑ 10)(2 ↑ 3) (D) can’t be determind
Application on the problem solution strategy
Construct a rhombus with side 4.5cm and diagonal 6cm.
If A + D > C + E, C + D = 2B and B + E > C + D, it necessarily follows that
(A) A + B > 2d (B) B + D > C + E (C) A + D > B + E (D) A + D > B + C
Application on the problem strategy
RICE is a rhombus. Find x, y, z.
Justify your findings. Hence, find the
perimeter of the rhombus.
One of the diagonals of a rhombus and its sides are equal.
Find the angles of the rhombus
Construct a rhombus PAIR, given that PA = 6 cm and
angle ∠A = 110°.
Each interior angle of a polygon is 108°. Find the number
of sides of the polygon.
The ratio of exterior angle to interior angle of a regular
polygon is 1:4. Find the number of sides of the polygon.
Three angles of a quadrilateral are 50°, 40° and 123°. Find its fourth angle.
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