Prakash Tiwari and Ishita Joshi Solutions for Chapter: Worksheet Chapter 13, 14 and 15, Exercise 1: Chapter 13, 14 and 15

Construct a triangle $△\mathrm{PQR}$ where $\mathrm{PR}=5.2 \mathrm{cm}, \mathrm{PQ}=4.5 \mathrm{cm}$ and $\angle \mathrm{P}=60°$.

Determine the second term, if first, third and fourth terms are $4, 8, 18$ respectively.

Determine the fourth term, if first, second and third terms are $7, 7, 2$ respectively.

Decrease the following by:

$280 \mathrm{g}$ by $50\%$

Construct a line, say $m$. Draw a perpendicular to $m$ at any point on it. Mark a point, say $A$ on this perpendicular which is $6 \mathrm{cm}$ away from $m$, then construct a line $n$ through point $A$ parallel to $m$.

Construct a triangle DEF with $DF=4.8 \mathrm{cm}; \mathrm{EF}=2.5 \mathrm{cm}; DE=4.5 \mathrm{cm}$.

Construct a $△ABC$ in which $BC=5 \mathrm{cm}, \angle B=45°$ and $\angle C=60°$.

Draw a right-angled triangle $∆TUV$ in which $\angle TUV=90°$, $UV=4 \mathrm{cm}$ and hypotenuse $=5 \mathrm{cm}$. Also, determine the length of the third side.