Geometry Answers

In Triangle ABC, S is the midpoint of line segment AB and T and the midpoint if line segment AC, if AS = 6, CT = 8, and ST = 7, the permeter of ABC = 42?
in triangle ABC, S is the midpoint of line segment AC and R is the midpoint of BC. If AC = 18, BC = 22 and AB = 16 then RS =8?, ST = 11? and RT = 9?

Parallelogram ABCD if m<A = (9x+5) and m<B = (3X + 7) then X = ?
Parallelogram ABCD if m<B = 70 which diagonal is longer? BD?
Parallelogram ABCD if m<A = (10x + 13) and m<D = (12X -9) which diagonal is longer?
Kite - ABCD if AB - 21 and BC = 9 then is CD 9?
In a triangle ABC, S is the midpoint of the line segment AB And T is the midpoint of line segment AC if ST = 4X +3 and BC + 9x + 2 then X +?

Parallegram ABCD if M<A = (17X + 1) and M<C = (19X -13) Then is X 3? Please show me what the formula is for this.
Thank you

Find the area of triangle whose perimeter is 48 cm and length of altitudes from opposite
vertex are 20 cm, 28 cm and 35 cm respectively

in triangle ABC an exterior angle at A measure 170 and <B =80. What is the longest side of a triangle

the lengthsof two sides of an isosceles triangle are are 25 and 15 cm.what is the possible perimeter of the triangle?

Q. How to prove that sum of two sides of a triangle is greater than the third side.

I have seen answer over the internet but could not understand in depth. Please reply me in easy
method.

Write the congruency of triangles in the symbol form . Also write 3 pairs of corresponding parts you have used to answer.

Of the Trapezium ABCD, AB ll CD. If AB=5.2cm, BC=3cm, AD=3.4cm & the dist. between the parallel sides is 2.5cm. then construct the Trapezium.

A tower 125 ft high is on the cliff on the bank of a river. From the top of the tower the angle of depression of a point on the opposite shore is 28°41' and from the base of the tower the angle of depression of the same point is 18°20' (a)Find the width of the river and (b) height of the cliff