answer these pls its for an assingment
Answers
1)Steps of construction:a Open the compass for the required radius of 3.2 cm. b Make a point with a sharp pencil where we want the centre of circle to be. c Name it O.d Place the pointer of compasses on O.e Turn the compasses slowly to draw the circle.It is required circle.
2)given number of girls = 20
boys = 15
therefore, the total number of students in class 20+15=35
the ratio of no. of girls to the number of boys= no. of girls/no. of boys
= \frac{20}{15}=\ \frac{20\div5}{20\div5}=\frac{4}{5\ }=4:5
15
20
=
20÷5
20÷5
=
5
4
=4:5
[HCF of 20, 15 = 5]
Q4)Constructing a 60° angle
open the compass to the same dimensions as our original line.
place the point of the compass on one end of the line and draw an arc.
repeat this at the other end and the arcs should intersect where the tip of the triangle should be.
