Check wether angel one and angel 2 are adjacent aor not

What is the measures of these angels.Which is the largest angel?Draw an angel larger than the largest angel.

Which angels in the adjacent figure are acute and which are obtuse ? Check your estimation by measuringthem.Writetheir measures too.

Two sides of a triangle are parallel to the coordinate axes. If slopes of the medians through the acute angels of the riangle are 2 and m, then m=

Fill in the blanks: If two lines intersect at a point, and if one pair of vertically opposite angels are acute angles, then the other pair of vertically opposite angles are ______.

In a circle of radius 42 cm, an arc subtends an angel of 72° at the centre. What is the length of the arc?

If the arcs of the same length in two circles subtend angels 65^0 and 110^0 at the centre, find the ration of their radii.