Page 31 - CT&AI_CLasa_7_Part_1

4. In the following solid, every edge has at least 5. In triangle ABC, BC is the base.
one other edge parallel to it. How many Point P lies on AB and point Q lies on BC such
different pairs of PARALLEL FACES are present
in the solid? that PQ is parallel to AC. Point R lies on AB
and point S lies on AC such that RS is parallel
to BC. Lines PQ and RS intersect at a point O
inside the triangle.

Which of the following quadrilaterals must be
a parallelogram?

(a) 8 (a) QPAC

(b) 7 (b) ORBQ

(c) 6 (c) QOSC

(d) 5 (d) SAPO

Answers
1. (b) 2. (b) 3. (c) 4. (b) 5. (c)

Parallel and Intersecting Lines 29