Friday
March 6, 2015

Homework Help: math

Posted by Kheladi Nep on Thursday, June 10, 2010 at 9:29am.

Triangle ABD in the diagram has a right angle A and sides AD = 4.9cm and AB = 7.0cm. side AB is extended to C so that ABC is a straight line.
a) use pythagoras theorem in triangle ABD to find the length of BD.
b)use trigonometry in triangle ABD to find angle ABD. hence find angle DBC.
c)angle BCD=21* use the sine formula in triangle BCD to find the length of CD
d)use the cosine formula in triangle BCD to find the length of BC

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Engineering - Triangle ABD in the diagram has a right angle A and sides AD = 4....
Math(Geometry) - In the diagram below(no diagram but details will be provided), ...
Geometry - Please answer at least one . PLEASE 1. Triangle XYZ has a right ...
math - I have 14 questions and I was wondering if someone could check my answers...
Geomentry - What is the converse of the theorem statement: If a line parallel to...
pls help w/t math ? - in a right triangle ABC, if ab is 14 and bc is 12 wut is ...
Math - In a triangle ABC, with angles A, B, and C and sides AB, BC, and AC, ...
geometry - obtuse triangle ABC with obtuse angle B. Point D on side AC such that...
Math - From the vertex A of a right angled triangle ABC, (A being the right ...
geomerty - The following triangles, ABC and DEF, are congruent. abc 67....

Members