Two poles of heights 6m and 11m stand vertically on plane ground .if the distance between their feet is 12m ;find the distance between their tips.
Two poles of heights 6m and 11m stand vertically on plane ground .if the distance between their feet is 12m ;find the distance between their tips. given ngurr. the diagonals A C And n D
at O. Ir 0B 00
Area Area AOBb
(iii Area DCB) ACT).
(iiij ABCD is a parallelogram
given figure shows a parallelogram ARCO
With arc-a sq. cm. P is a in AR such
(i) the area of APO.
(ii) the ratio OP : OD
In the parallelogram ABCD. the side AB is
to the Bjint X, so that BX = AB.
nr line BC E. prove
(i) DBXC is a parallelogram.
Area (A AED) = 2 area (ACE_X).
4- In A ABC. E and F are of sides AB
and AC respectively. If BF and CE intersect
each other at point O, prove that the A OBC
and quadrilateral AEOF are equal in area.
O. Of POB z find
(iii' Area, A ABC
OH: medians or a triangle ABC interu:rt
other point Ci. one of iB medians i'
prove thal -
Area ABD' Area BGDj
Area ACDi Area (CGD'
Area - x
7. In ABC. E is mid-point of side AB and
EBCD i' a parallelogram, If the arca of
A ABC is 80 ern2, find the
The perimeter of a triangle ABC is
and ratio the lengths of allinuk
5 4. Find the lengths of iLs sides.
Let the sides be y cm and — y) cm.
Alu'. let the lengths Of altitudes cm.5acm
and au cm
base x altitude
• Area of a triangle =
— x x x 60
FIN of all wove that
•..r BOE = Ar. of COF
= and = 148 —
— O and I Ox + 148
9. In the given figure, E is mid-pouu ot
DE meets diagonal AC at F If •a
is a parallelogram o
and area of S ADF rs
60 find .